Annual report pursuant to Section 13 and 15(d)

INCOME TAXES - Effective Tax Reconciliation (Details)

v3.22.0.1
INCOME TAXES - Effective Tax Reconciliation (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Effective Income Tax Rate Reconciliation, Amount [Abstract]      
Income taxes at U.S. statutory rate $ 546 $ 211 $ (3,455)
State taxes, net of federal benefit 62 71 256
Forgiveness of PPP Loans (1,286) 0 0
Net operating loss carryback 0 (4,655) 0
Research and development credits 0 (518) (203)
Permanent and other items (1,686) 928 (164)
Income tax expense (benefit) $ (2,364) $ (3,963) $ (3,566)